FR2481161A1 - METHOD AND DEVICE FOR THE CONTINUOUS PRODUCTION OF NON-FERROUS NON-FERROUS METALS WITH SELF-BLOCKING STACKS FROM A DRAFT OBTAINED FROM A GROOVED WHEEL CASTING MACHINE - Google Patents

Abstract

THE INVENTION RELATES TO A METHOD AND TO A DEVICE FOR OBTAINING SELF-LOCKING STACKING NON-FERROUS METAL INGOTS FROM A BLANK 8 FROM A CONTINUOUS CASTING MACHINE ON A GROOVED WHEEL. THE METHOD CONSISTS, FIRST, OF PROGRESSIVELY PINCHING THE SIDE FACES OF THE BLANK, IN ORDER TO FORM INTEGRATIONS THERE AND TO DEVELOP AT LEAST ONE BOSS ON ANOTHER SIDE OF THE BLANK, THEN IN SHEARING THE BLANK ON THE LAW OF FINGERPRINTS. THE DEVICE INCLUDES, CONNECTED TO THE UPRIGHTS 11 OF A CARRIAGE PERIODICALLY ATTACHED TO THE BLANK, TWO SYMMETRICAL JAWS 12 WHICH FORM THE IMPRINTS AND A KNIFE 13 WITH ITS CUTTING EDGE 14 MOVING TO SHEAR THE BLANK. THIS INVENTION FINDS ITS APPLICATION, IN PARTICULAR, IN THE ALUMINUM INDUSTRY, EACH TIME WE WANT TO OBTAIN INGOTS OF CONSTANT SECTION OF CONSTANT SECTION, OF KNOWN LENGTH, PRESENTING BOSSES AT THEIR ENDS, FROM A CONTINUOUSLY CAST PRODUCT. ALLOWING YOU TO OBTAIN A SELF-LOCKING ASSEMBLY BY STACKING.

Description

METHOD AND DEVICE FOR CONTINUOUS PRODUCTION OF NON-METAL INGOTS

  FERROUS SYSTEM WITH SELF-BLOCKING STACKING FROM A DRAFT FROM A

CASTING MACHINE ON A GROOVED WHEEL

  The invention relates to a method and a device for obtaining continuously,

  from a blank of non-ferrous metal from a cutting machine

  continuous groove wheel, of ingots of constant section and possesses

  at their ends bosses suitable for the realization of

self-locking lanes.

  Those skilled in the art know that it is possible to produce from molds of

  suitable for me, ingots with recessed parts and / or

  lief on one or more of their faces and this, in order to prevent relative displacement of the ingots relative to each other when they are assembled in the form of piles and thus make the transport convenient.

  However, this technique uses discontinuous

  ingot, ingot, leading to products of structure and

  rather heterogeneous composition, of varying weights and presenting a

sure of end of solidification.

  This is why a person skilled in the art, in order to overcome these shortcomings, has

  In particular, in the case of ingots with a cross-sectional area of less than or equal to the square decimetre, casting machines with a groove closed by a ribbon are used. The draft

  continuous metal obtained at the exit of these machines then being

  tagged into separate ingots either by sawing on the fly or, as in

  French Patent 1,224,969, by die-stamping followed by shearing.

  However, each of these methods has significant disadvantages.

  Thus, in the sawing, in addition to the rapid wear of the saws, an appreciable amount of

  Metal wax is devalued in the form of chips that must be separated from the cutting oil before recycling. In the process, by stamping

  followed by shearing, it is necessary to have a

  to sort, and moreover, the ingots obtained have on their length a bulge due to the crushing effect of the matrix; o an irregular section and spacing more or less between them when

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  are aligned next to each other and consequently a compactness

  relatively low batteries they can achieve.

  However, a major disadvantage of these processes is that the ingots resulting from

  so much of their use does not include any means capable of forming

  a block assembly when stacked.

  This is why the applicant has sought and developed a method and a device that allow the continuous manufacture, without loss of metal, ingots, of constant section, having the necessary means

  the construction of self-locking batteries.

  The process according to the invention consists, in known manner, of casting a blank on a wheel. groove temporarily closed by a ribbon and to make periodically integral this blank of a device responsible for the share ingots, but it is characterized in that the blank is, first, pinch gradually on its side faces so to form footprints and develop at least one boss on at least,

  one of the other faces, then sheared to the right of the prints.

  Thus, the process uses, as raw material, a draft which is

  of a casting machine on a throat wheel temporarily closed by

  a ribbon for forming a mold with movable walls.

  The blank coming out of the casting machine is first brought back into a

  horizontal direction to be threaded between the cylinders of a dres-

  which gives it a proper rectitude, then it engages in

  the device responsible for sharing it in ingots.

  This device is fixed on a mobile carriage which comprises means to make it integral with the blank. Thus, under the thrust of the cylinders of the trainer, the blank carries with it the carriage, which allows the device to move synchronously with the blank and exercise his share shares on a section of the latter . During this synchronous movement, the blank is first clamped progressively on its lateral faces by the device so as to form impressions and to develop on at least one of the other faces, at the

less a boss.

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  These impressions are preferably symmetrical with respect to a vertical plane passing through the axis of the blank and they more or less conform to the slope of the lateral faces. The depth of these prints may vary

  depending on the nature of the product or the shape of the blank.

  The bosses that develop on the underside and / or upper of the blank are on a cut right fingerprints as two nipples separated by a hollow; these nipples dominate the plane of these faces of a height which may be of the order of 1/10 of the height of the blank and join this face following a convex curve. After clamping, the blank is cut in a plane perpendicular or oblique to its axis, right fingerprints, that is to say to share the bosses by their median plane. Each ingot, thus obtained, presents

  in the longitudinal direction a projecting profile at each of its ends

  what constitutes the means to prevent self-locking in a system

conventional stacking.

  At the outlet of the device, each ingot is taken up by a processing line in which sheets are formed where one ingot out of two can be turned in order to bring its lateral faces in close contact with

  the neighboring ingot; then, the different layers are superimposed

  in both the long and the cross direction so as to constitute

batteries.

  In these stacks, the bosses placed on the two opposite sides of each ply, block both the lateral faces of the upper ply and the lower ply, the latter plies blocking themselves by

  their bosses the lateral faces of the considered web. Batteries and

  if obtained then are circled and can be conveyed without any

  risk of relative displacement of ingots.

  The present invention also relates to a device for

  implement the method described above.

  This device is characterized in that it comprises, connected to the movable carriage, two jaws placed opposite the lateral faces of the blank and

  intended to form fingerprints and a knife charged with shearing the

  on at least part of its section to the right of fingerprints.

  These jaws, preferably identical, are schematically constituted by a right prism of triangular section surmounted by a trihedron whose

  base has the same section as the prism. They relate to the worlds

  side of the carriage by one of their faces while the two other free faces intersect along an edge contained in a plane

  vertical perpendicular or oblique to the axis of movement of the blank.

  In general, the height of each jaw is close to the height of the

  so that the impression is from the top to the bottom of the lateral surfaces.

  ral. Associated with these bits, is a knife fixed on the trolley and whose edge is placed at the right of the edges of the jaws. At rest, the edge of the knife is placed slightly behind the line of the pass

of the sketch.

  From the operating point of view, the movement of the carriage, the jaws and the knife are automatically controlled in a sequence comprising the following steps: the carriage being in the rest position, the blank

  pushed by the trainer scrolls between the elements of the device. The Mo-

  where the length of the blank corresponding to that of the ingots which we wish to obtain has passed to the right of the jaws, the carriage is joined together

  draft by any means and is drawn to the same

  only the sketch. This movement of solidarity leads to the implementation

  road jaws that come to apply on the side faces de lr'ébau-

  to progressively go down and mark these faces with their

  you. As soon as these footprints have reached the desired depth, the jaws

  withdraw quickly while the knife comes shearing progressively

  draft on at least part of its section. Then the knife retreats quickly, the carriage is separated from the rough, animated

  of a rapid movement of translation contrary to that of the sketch.

  to a distance of the order of the length of an ingot and

  the solidarity is established again for a new cut.

  The present invention will be better understood with the aid of the accompanying drawings.

  the application which are in no way restrictive and are for the sole purpose of

illustrate it.

  FIG. 1 represents a possible casting installation equipped with

  the cart-device assembly according to the invention.

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  FIG. 2 is a section perpendicular to its axis of displacement of

the cart-device assembly.

  Figure 3 shows in perspective an end of the ingot obtained according to the method of the invention. Figure 4 shows an assembly of self-locking ingots according to the invention. FIG. 1 shows a four-wheel type continuous groove wheel casting machine comprising the actual casting wheel 1, the three auxiliary wheels 2, 3, 4 and the ribbon 5. The liquid metal

  is introduced into the next machine 6 and leaves at 7 in the form of

  8. This draft is taken to a trainer 9 and then to a

  mobile riot 10 equipped with jaws and knife.

  FIG. 2 is a section perpendicular to its axis of displacement of the trolley-device assembly which can be distinguished, on the one hand, connected

  each of the uprights 11, the jaws 12 and the knife 13 with its tran-

  song 14 placed at the lower part of the trolley, and, on the other hand, the

che 8 to share.

  FIG. 3 is a perspective view of an end of a bullion

  trant bosses 15 that allow blocking ingots between them.

  Figure 4 shows an assembly of self-locking ingots according to the invention. The present invention finds application particularly in the aluminum industry, in all cases where it is sought, starting from a continuously cast product, to obtain ingots having a constant section,

  a known length and suitable for self-locking stacking.

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Claims (1)

  1 / - Process for obtaining ingots of non-ferrous metals ,. of constant cross-section, self-locking stacking, from a blank from a continuous grooved wheel casting machine, wherein the blank is made periodically secured to a device for sharing the ingots, characterized in that 1 blank is first clamped progressively on its side faces to form indentations and develop at least one boss on at least one of the other faces and sheared to the right of fingerprints. the   / - Device for obtaining aluminum ingots with self-locking stacking   according to the method of claim 1 characterized in that   comprises, connected to a mobile carriage, two jaws placed opposite the   these sides of the blank and intended to form the fingerprints and a   bucket responsible for shearing the blank on at least part of its section to the right of fingerprints.   / - Device according to claim 2, characterized in that each of the jaws has the shape of a right prism of triangular section topped   a trihedral whose base has the same section as the prism.   / - Device according to claim 2, characterized in that one of the lateral faces of the prism and the corresponding face of the trihedron are   connected to the amounts of the carriage, the other two faces being free.